I've seen the programme in question. Gordon Ramsay offered free pizza to passers by. He did not make any claims about it being vegetarian or otherwise. Somebody tried some first and then found out it had ham in it afterwards. Gordon found this extremely funny, and made a big fuss about the situation. That maybe a bit insensitive but he hadn't tricked the guy into eating it. Really, it was the vegetarian's fault, for not checking whether the free sample was vegetarian or not before tucking in.

Not quite the same as Little Hawk's dog shit analogy because I wouldn't expect food to have dog shit in it since nobody that I know of considers that to be a normal food stuff, so i wou,ldn't expect to have to ask whether a free sample contained any. Whereas plenty of people do eat meat as a matter of course so why should a vegetarian assume that something was vegetarian without checking?